Here are just some books that give a greater understanding of where Ray Peat is coming from in regards to his knowledge and recommendations.
Feel free to add.
Life at the cell and below - cell level - The hidden history of a fundamental revolution in biology : Gilbert Ling
Can be ordered from here: http://pacificpressnewyork.com/Merchant ... _Code=PPNY
Stress without distress: Hans Seyle
The Thyroid: Thomas Hodge McGavack
Bioenergetics: Albert L. Lehninger
The Mitochondrion: Albert L. Lehninger
Inventing the Aids Virus: Peter H. Duesberg (Thanks to Peatarian for this one)